The Extech RD300 is an easy to use refrigerant leak detector with a heated diode sensor that will detect all CFCs, HCFCs, and HFCs refrigerants including R-22, R-134a, R-404a, and R-410a. Service technician will find this RD300 refrigerant detector ideal for locating leaks in air conditioning and cooling systems that use standard refrigerants.
Key Features:
- Detects all CFCs, HCFCs, and HFCs refrigerants
- Field replaceable heated diode sensor
- Sensitivity levels of High/Medium/Low 0.25/ 0.50/ 0.99 oz. /year
- LED light at the probe tip (replaceable)
- Visual and audible alert (with mute button)
The RD300 refrigerant leak detector has a sensitivity ranging from 0.25 oz. /year on high to 0.99 oz. /year for low. A technician can easily adjust the sensitivity level by pressing the sensitivity range button on the keypad when trying to locate the exact location of a leak. The green, yellow, red multi-colored LED bars on the keypad indicates the concentration of gases the instrument has detected. When the leak detector has detected refrigerant it will emit both a visual and audible alert. However, a technician can mute the audible alert, if desired. The refrigerant leak detector also has a reset button to reset the meter to the ambient air to pinpoint a leak.
The flexible probe is 18” long and includes a LED light at the end to make it easier to work in areas that are dimly lit. The probe’s LED light can be turned on and off by a button on the keypad. The RD300 is operated with a 9V battery and will automatically shut off after 10 minutes of inactivity. The keypad LOW-BATT light will switch on when the battery is getting low. The instrument also comes with a leak test bottle to ensure the instrument is testing acurately.
Extech RD300 includes:
- RD300
- 9V battery
- Leak test bottle
- Protective hard carrying case
- Instruction manual
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
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